Tech review: A look back at the week's headlines

The world's largest video collection containing more than 11,000 titles has been sold for $750,000 (£440,000).

The trade of child sex abuse images online is now "an epidemic", according to the head of the Virtual Global Taskforce - a global initiative which combats the problem.

And Amazon has unveiled its first handset which is due to be released on 25 July. The Fire Phone offers 3D visuals and has a preloaded app which allows the device to recognise text, images and sounds objects in its vicinity.

BBC Click has more details on these and other technology stories of the week.